How do atoms move in a system based on the amount of energy?

Atoms in a system move more rapidly as the energy increases, primarily due to the increase in thermal energy. At higher energy levels, atoms vibrate, rotate, and translate more vigorously, leading to increased kinetic energy. Conversely, at lower energy levels, atomic motion slows down, resulting in reduced kinetic energy and tighter bonding in solids. This relationship between energy and atomic movement is fundamental in understanding states of matter and phase transitions.